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<span id="django-1-4-6-release-notes"></span><h1>Django 1.4.6 release notes<a class="headerlink" href="#django-1-4-6-release-notes" title="Permalink to this headline">¶</a></h1>
<p><em>August 13, 2013</em></p>
<p>Django 1.4.6 fixes one security issue present in previous Django releases in
the 1.4 series, as well as one other bug.</p>
<p>This is the sixth bugfix/security release in the Django 1.4 series.</p>
<div class="section" id="s-mitigated-possible-xss-attack-via-user-supplied-redirect-urls">
<span id="mitigated-possible-xss-attack-via-user-supplied-redirect-urls"></span><h2>Mitigated possible XSS attack via user-supplied redirect URLs<a class="headerlink" href="#mitigated-possible-xss-attack-via-user-supplied-redirect-urls" title="Permalink to this headline">¶</a></h2>
<p>Django relies on user input in some cases (e.g.
<a class="reference internal" href="../topics/auth/default.html#django.contrib.auth.views.login" title="django.contrib.auth.views.login"><tt class="xref py py-func docutils literal"><span class="pre">django.contrib.auth.views.login()</span></tt></a>, <a class="reference internal" href="../ref/contrib/comments/index.html#module-django.contrib.comments" title="django.contrib.comments: Django's comment framework"><tt class="xref py py-mod docutils literal"><span class="pre">django.contrib.comments</span></tt></a>, and
<a class="reference internal" href="../topics/i18n/index.html"><em>i18n</em></a>) to redirect the user to an &#8220;on success&#8221; URL.
The security checks for these redirects (namely
<tt class="docutils literal"><span class="pre">django.utils.http.is_safe_url()</span></tt>) didn&#8217;t check if the scheme is <tt class="docutils literal"><span class="pre">http(s)</span></tt>
and as such allowed <tt class="docutils literal"><span class="pre">javascript:...</span></tt> URLs to be entered. If a developer
relied on <tt class="docutils literal"><span class="pre">is_safe_url()</span></tt> to provide safe redirect targets and put such a
URL into a link, they could suffer from a XSS attack. This bug doesn&#8217;t affect
Django currently, since we only put this URL into the <tt class="docutils literal"><span class="pre">Location</span></tt> response
header and browsers seem to ignore JavaScript there.</p>
<div class="section" id="s-bugfixes">
<span id="bugfixes"></span><h3>Bugfixes<a class="headerlink" href="#bugfixes" title="Permalink to this headline">¶</a></h3>
<ul class="simple">
<li>Fixed an obscure bug with the <a class="reference internal" href="../topics/testing/tools.html#django.test.override_settings" title="django.test.override_settings"><tt class="xref py py-func docutils literal"><span class="pre">override_settings()</span></tt></a>
decorator. If you hit an <tt class="docutils literal"><span class="pre">AttributeError:</span> <span class="pre">'Settings'</span> <span class="pre">object</span> <span class="pre">has</span> <span class="pre">no</span> <span class="pre">attribute</span>
<span class="pre">'_original_allowed_hosts'</span></tt> exception, it&#8217;s probably fixed (#20636).</li>
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<li><a class="reference internal" href="#mitigated-possible-xss-attack-via-user-supplied-redirect-urls">Mitigated possible XSS attack via user-supplied redirect URLs</a><ul>
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